4)
3x-2y=10
5x+y=4
We solve this system of equation by elimination method.
3x-2y=10
2(5x+y=4)
------------------------
13x=18
Answer: A) 13x=18
5)
slope-intercept form:
y=mx+b
y=f(x)
m=slope
b=y-intercept
1) we calculate the slope:
we choose any two points of this table:
For example: (2,2) and (3,4)
Given two points (x₁,y₁) and (x₂,y₂) the slope of the line that passes through these points will be:
m=(y₂-y₁)/(x₂-x₁)
In this case:
m=(4-2)/(3-2)=2
2) we compute "b";
we choose an any point of this talbe:
For example: (4,6), and we substitute "x" for "4" and "y" for "6" in the next equation:
y=2x+b
6=2(4)+b
b=6-8
b=-2
3) we build the function that it belong this table:
m=2
b=-2
f(x)=mx+b
f(x)=2x-2
Answer: B) f(x)=2x-2
Answer:
472
Step-by-step explanation:
break it up into two rectangles
1) 12x18=216 in
2) 8x32=256
Hope this helped
Answer: h = 113°
Step-by-step explanation:
First, we will find the third angle of the top triangle
Which we can call x
43° + 24° + x = 180°
67° + x = 180°
x = 180° - 67°
x = 113°
Now, we can see that x and h are opposite angles
Which means x = h
113° = h
Answer:
(1) Answer = - 2 2/3
(2)Answer : Price wally paid = $80
Step-by-step explanation:
(1)
We need to find, -3 1/3 ÷ 1 1/4
i.e - 10/3 ÷ 5/4
or -10/3 × 4/5
or -(10 ×4) / (3 ×5)
or -40/15
or -8/3
or -2 2/3 This is the answer
(2) Given, original price of fan = $180
And
Wally paid 4/9 of original price .
i.e Price wally paid = 4/9 * 180
Price wally paid = $80
Answer:
A
Step-by-step explanation:
x=1.4
x + 4.3 = 5.7
x = 5.7 - 4.3
x = 1.4
